Lock.



PATE-NTSB DEG. 27, 1904n vF. UHRI. Loox.

APPLICATION .'ELED JUNE 21. 1904.

hwentor Patented December 27, 1904.

PATENT OEEICE.

FRANK UHRI, OF MELROSE, IDAHO.

LOCK.

SPECIFICATION forming part of Letters Patent No. 778,469, dated December 2'?, 1904.

Application filed June 2l, 1904. Serial No. 213,521.

tation is utilized on doors wherein removable panels are provided, being utilized to secure such panels in position upon the door.

It is often desirable, as well known, to provide a dooi structure which may be converted into a screen-door, a transparent-panel door, or a solid ordinary wooden-panel door, and

the lock means which I have devised is espe-l cially designed for doors having interchangeable panels, such as above premised upon, since it admits of ready removal and securance of the panels whenever necessary.

For a full description of the invention and the merits thereofl and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings.

IVhile the essential and characteristic features of the invention are susceptible of modiiication, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which- A Figure 1 is a perspective view showing the application of the invention. Fig. 2 is a vertical sectional view through the lock-casing, bringing out clearly the interior arrangement of parts. Fig. 3 is a view similar to Fig. 2, the operating-lever being depressed. Fig. 4: is a perspective view, partially broken away, showing more clearly the means for mounting the operating-lever upon the casing.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

In carrying out the invention the drawings illustrate a door 1, in which is mounted a removable panel 2, and it will be understood that said panel 2 may be solid, transparent, or provided with a screen, as the case may be. It is preferred to provide upon the door four of the lock devices contemplated in my invention. However, it will be understood that any number of such devices may be used as found best in the actual use thereof. The lock devices being of the same form, one only will be described, and the same comprises, essentially, a casing 3, a lock-bolt 4, slidable in the casing 3, and an operating-lever 5, which cooperates in a manner which will be described hereinafter. The lock-bolt L is slidable transversely in the upper portion of the casing 3, and a spring 6, disposed about the lock-bolt, tends to normally hold said lock-bolt at the limit of its movement toward the casing. The end of the bolt 4, which cooperates to prevent displacement of the panel 2, is enlarged, as shown at 7. The opposite end of the bolt is provided with a head or plate 8, between which and the inner side of the casing 3 is disposed the spring 6, above mentioned. The lever 5 is pivot-ed between its ends and closes one side of the casing when in its normal position, with the lock-bolt projected outward from the casing. A spring 9 is interposed between one end of the lever 5 and the casing 3 and normally holds said lever with its opposite end in contact with the head or plate 8 of the lock-bolt. Journals 10 are projected from the lever 5 and are preferably receivedin bearings ]1 in the casing 3, which bearings constitute open slots, and screws or removable fastenings l2 prevent displacement of the journals of the lever 5 from its bearings 11. A detent 13 of somewhat elbow form is pivoted between its ends within the casing 3, and one end of the detent 13 is operably connected with the bolt 4 by means of a rod 14. rlhe rod 14: is connected at one end with the head or plate8 of the bolt 4 and at its opposite end with the detent. The end of the detent 13 opposite to that connected with the bolt 4. is adapted to engage with the lever 5 and by cooperation with this lever to hold the bolt 4 at the limit of its outward or 95 inward movement. r1`he detent 13 'is thus IOO after the same has been placed in position upon the door 1. The end of the detent 13 which cooperates with the lever engages in a recess 15, which is some distance from the end of the lever when the said detent is holding the bolt out of engagement with the panel.

W'hen the bolt 4 is in operative position engaging the panel 2, the spring 6 is compressed and the detent 13 engages the end of the lever adjacent the head or plate 8. In other words, the detent 13 is adapted by its cooperation with the lever 5 to be locked in a position holding the spring 6 compressed and the bolt 4 at the limit of its outward movement relative to the easing. and when it is desired to remove the panel 2 depression of the lever 5, so as to compress the spring 9,which coperates with this lever, will disengage the end of the lever 5 from the. detent 13. and the lockbolt 4 under the actuation of the spring 6 will be forced out of engagement with the panel. As the lock-bolt 4 moves under the tension of the spring 6 the rod 14 is pulled upon, and this causes the detent to be thrown into inter locking engagement with the recessed portion of the lever thereby locking the lockbolt out of engagement with the panel. The enlarged portion 7 of the lock-bolt 4 passes through keepers 1G, which are attached to the door and the panel. Then the lock-bolt 4 is projected the limit or' its movement from the casing 3, the lever and the head or plate 8 are in alinement and close one side of the casing, and said lever and plate are preferably hat Yfor this reason.

Having thus described the invention, what is claimed as new is*d 1. In a lock, the combination otl a lock-bolt, an operating-lever, and a detent cooperating with the bolt and lever to hold the lock-bolt in engaged or disengaged position.

2. In a lock, the combination ot' a casing, a lock-bolt mounted in said casing, a spring cooperating with said loclbolt, a lever pivoted in the casing, a spring bearing against the lever, a detent pivoted in the casing, and connecting means between one end of the detent and the lock-bolt, the opposite end of the detent engaging the lever.

3. In a lock, the combination of a casing, a lock-bolt slidable in said casing and having a head, a spring interposed between the head and easing, a spring bearing against said le- Ver, a detent pivoted between its ends in said casing, connecting` means between one end of the detent and the head of the lock-bolt, and interlocking means between the opposite ends of the detent and the lever.

4. In a lock, the combination of a casing, a lock-bolt slidable in said casing, a spring eooperating with the lock-bolt, a head projected from the bolt, alever pivoted in the easing, a spring coperating with the lever, a detent pivoted between its ends in the casing, a bar connecting one end of the detent with the head of the lock-bolt, the lever being provided with a recess or engaging portion adapted to interlock with the detent.

In testi mon)T whereof I a'lix my signature in presence ot' two witnesses.

FRANK UHRI. [n s] Witnesses:

M. A. RATCLIFFE, H. R. GRAY. 

